REFLECTOR: Dynon fuel pressure

Scott Derrick scott at tnstaafl.net
Mon Apr 2 11:43:23 CDT 2012


I'm having an issue of a false high fuel pressure readingon my Dynon EMS.

I came within minutes of removing the fuel pump to see if the high 
pressure reg was dirty or the recirc outlet was clogged. A 5 hour job 
just to uncover the pump?

I happened to be testing the installation of a replacement capacitive 
fuel probe and noticed the fuel pressure was reading 10 psi and the 
engine was off! I played around with re-grounding the sensor(Dynon has a 
serious Achilles heal because they use ungrounded sensors) to see if 
that would alleviate it but no joy.

Anybody else have this issue?

I'm thinking of switching to a GRT sensor as they are 1/2 to 1/4 the 
price of Dynon's and most are grounded.

Scott


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